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Gastrointestinal Cancers Gastrointestinal cancers: an urgent need INTRODUCTION Scope of problem: Gastrointestinal (GI) cancers—including cancers of the colon and rectum (colorectal cancers), esophagus and stomach (gastroesophageal cancers), liver, gallbladder, pancreas, small intestine, appendix, and anus—collectively represent one of the greatest public health issues in the US and, indeed, worldwide—leading to almost 4.5 million global deaths in (latest data from 2013). According to American Cancer Society (ACS) reported statistics (www.cancer.org), taken as a whole, gastrointestinal (GI) cancers have the highest incidence and are the second leading cause of cancer death (after lung cancer) in the United States (Figure 1). However, the relative proportion of government and private funding for GI cancer research does not match the problem—for example, in 2013, the NCI allocated over $100 m more to breast cancer than to GI cancer research (approximately 11.7% compared with 8.6% of their total budget) and, in 2015, ACS total funding amount by percent relevance for breast cancer was approximately $62 m compared with $43 m for GI cancers. These amounts were awarded despite the fact that, during those years, approximately 3.6 times more patients died from GI than from breast cancers. These disparities in funding seriously affect science and solutions. We seek to rebalance our national (and global) cancer research investment toward GI cancers in keeping with the relative magnitude of the problem. Our national prioritization on breast cancer research has yielded major success for our breast cancer patients but has unintentionally left other major cancers, most notably GI cancers, far behind. Unlike lung cancer, prostate cancer, and breast cancer, we have few insights into why GI cancers occur and how to prevent them. Among GI cancers, only colon cancer has an official screening recommendation in the US, and even this test, the colonoscopy, has sub-optimal compliance and high cost. Most significantly, due to lack of research investment, we have failed to realize major progress in treating these cancers, making them among the most feared cancers of all. ROLE OF THE GI CANCER ALLIANCE A newly formed GI Cancer Alliance of 20 individual GI cancer advocacy organizations has the vision of creating a stronger, more unified voice to fight GI cancers—which collectively make up the most common and deadly cancer group. The mission of the GI Cancer Alliance is to raise awareness; provide education; and advocate for the prevention, treatment, and cure of gastrointestinal cancers. This will occur through the 1 2015 GI Breast Prostate Lung collaboration partners. Figure 1. ”Top” cancers of advocacy groups e y e y e y e y c t c t ce tty c t n li n li n llii n li e ta e ta e ta e ta - id r id r id rt id r incidence & mortality: with patients,ACS, Cancer government Facts and leaders,Figur c o c o ci o c o In M In M IIn M In M industry , and institutional es (www.cancer.org Other The members of the Alliance= include: Beat Liver Tumors, The Bili Project Foundation, cancers of the Cholangiocarcinoma Foundation, Colon Cancer Alliance, Colon Cancer Challenge, Debbie’s Dream ) Foundation: Curing Stomach Cancer, Esophageal Cancer Action Network, Fibrolamellar Cancer Foundation, Fight Colorectal Cancer, Gastric Cancer Foundation, Global Li Stomach Cancer, Michael’s Mission, National Pancreasanus Foundation, No Stomach for Cancer, Pan , small intestin Ruesch creaticCenter Cancerfor the ActionCure of Network, GI Cancers and TargetCanc e, gallbladder & bile ducts Prevent Cancer Foundation, The Raymond Foundation, The(oth er than liver) er Foundation. 2 ver Institute, Hope for GROUPING GI CANCERS TOGETHER; why are we stronger together? You might ask why the different alliance groups are joining forces—what is the rationale for collaborating? There is more than one answer to this question: 1. The death rate for all GI cancers is extremely high. Figure 2: GI cancers in the US A. Incidence and Mortality B. Ranking of Deaths Relative to Incidence Annually 140000 100 120000 esophagus, 92% Mortality for each 90 specified GI cancer pancreas, 83% 100000 80 lung, 71% 80000 gallbladder & other 70 liver, 69% biliary; anus; sm. 60 60000 intes ne 50 40000 stomach, 44% 40 colorectal, 37% 20000 30 Other, 22% 0 20 breast, 17% 10 prostate, 12% al s r r h s t a ve e c u c re li th a ag re c o m h 0 lo an to p o p s so c Including e cholangiocarcinoma Survival rates are particularly bad for pancreas, liver (including cholangiocarcinoma), and esophageal cancers. 2. Their impact on patients and their families (symptoms, financial burden, death rates) is dramatic. They strike the young and old, men and women. They are treated with major life altering surgery, intensive chemotherapy, and radiation, all of which result in a major deterioration in productivity and quality of life. 3. Research investment in GI cancers does not match the magnitude of the problem. 4. GI cancers are related biologically and have similar, overlapping molecular characteristics 3 2015 2030 GI GI Breast Prostate Lung Breast Prostate Lung 5. 6. GI cancers share healthcare teams 7. AACR, ACS) see them as one group Other “groups” of cancers ar The problem is not going away: Figure 2015 using Figure 3 e y e y e y e y e y e y e y showse y c t c t ce ty c t c it c it c it c it n li n li n llii n li n l n l 3 n l n l e ta e ta e ta e ta e ta e ta : e ta e ta id r id r id rt id r id r id r i d r i d r c o c o ci o c o c o c o c o c a continuationothe 2015 of impact compared with the estimated In M In M IIn M In M In M In M In M In M ; t e treated as a groupshe healthcare (e.g. leukemia/lymphoma) system and professional societies (ASCO, annual % incidence and mortality trends from 2008 to 2015. 2030 GI CANCER IMPACT impact, extrapolated from On a National level, It was estimated that than half this number are growing A GI cancer diagnosis leads not only to a physical health impact but also an emotional, financial, and logistical one. GI cancers have a huge impact on both men and women. The financial annually (Figure 2) indirect and often unanticipated costs of cancer 286,480 care: e.g., people transportation, were living with childcare, a GI cancer and lost diagnosis wages. — 147,090 The emotional impact and logistic Social isolation is a common result. — . died from this set of al burden applies not only to the patients but also their loved ones. relate not only diseases that same year to cancer treatment in 2015 . These numbers and more 4 costs, but extend to the RECOMMENDATIONS As a group, the GI Cancer Alliance makes the following recommendations: We increase GI cancer awareness, including the number of people’s lives it affects, both nationally and globally; the measures that can be taken to prevent this deadly group of diseases, including diet, exercise, and, in some cases, screening; the number of trials that are available to patients with GI cancers in the US; and the impact that increased funding will make on implementation of national screening programs, discovery and testing of more effective GI cancer-fighting agents, raising awareness to trial availability, and helping patients and their families out with the unexpected and logistical indirect costs of a GI cancer diagnosis. We suggest an Increase in the amount of funding allocated annually to the following GI cancer- related research areas: 1) Screening. We recommend development and implementation of screening methods for all GI cancers. By traditional definitions, screening for a disease should be non-invasive, effective and inexpensive. Very few tests actually meet this standard. GI cancers have different incidences depending on geographic location, genetics, and environment. To put forward one global standard will be challenging. However increased research in this area will have a major impact on lives and healthcare costs of the future. There is a limited role for GI cancer screening and prevention in the United States. The impact of effective screening methods is exemplified by breast and prostate cancer mortality rates. Both disease groups have fully implemented and approved national screening programs, dramatically improving patient survival rates. In the US, colonoscopy is recommended and fully implemented for patients over 50 years of age or at high risk of the disease. The reality is that compliance is low and payers do not always support this screening. Additionally, individuals are developing colorectal cancers at an increasingly younger age, suggesting that screening should be mandated at age 40 or earlier. Thus, we need novel techniques for early detection that move beyond invasive, expensive procedures; this can only become reality through focused research and development. 2) Understanding the interface with our environment Increasing recognition is being given to the “microbiome”, defined by the National Human Genome Research Institute (NHGRI) as “the collective genomes of the microbes (composed of 5 bacteria, bacteriophage, fungi, protozoa, and viruses) that live inside and on the human body.” The NHGRI says, “we have about 10 times as many microbial cells as human cells.” The institute recommends studying humans as “supraorganisms,” composed of both human and non-human cells. During childhood, microbial colonization of mucosal tissues has major impact on the development of our immune systems and how our bodies deal with environmental exposures and development of diseases later in life.
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